use [email protected] on macOS

`brew install openssl` now installs [email protected] and there is no way to install openssl 1.0 or rename [email protected] to openssl.

Author: tanner0101

Package.swift

@@ -19,7 +19,7 @@ let package = Package(
             pkgConfig: "openssl",
             providers: [
                 .apt(["openssl libssl-dev"]),
-                .brew(["openssl"]),
+                .brew(["openssl@1.1"]),
             ]
         ),